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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Metabolon ： ウィキペディア英語版 Metabolon In biochemistry, a metabolon is a temporary structural-functional complex formed between sequential enzymes of a metabolic pathway, held together by non-covalent interactions, and structural elements of the cell such as integral membrane proteins and proteins of the cytoskeleton. The formation of metabolons allows passing (channelling) the intermediary metabolic product from an enzyme directly as substrate into the active site of the consecutive enzyme of the metabolic pathway. The citric acid cycle is an example of a metabolon which facilitates substrate channeling. During the functioning of metabolons, the amount of water needed to hydrate the enzymes is reduced and enzyme activity is increased. ==History== The concept of structural-metabolic cellular complexes was first conceived in 1970 by A. M. Kuzin of the USSR Academy of Sciences,〔Kuzin A. M. Structural – metabolic hypothesis in radiobiology. Moscow: Nauka Ed., 1970.- 50 p.〕 and adopted in 1972 by P. A. Srere of the University of Texas for the enzymes of the citric acid cycle.〔Srere P. A. Is there an organization of Krebs cycle enzymes in the mitochondrial matrix? In: Energy Metabolism and the Regulation of Metabolic Processes in Mitochondria, R. W. Hanson and W.A. Mehlman (Eds.). New York: Academic Press. 1972. p.79-91.〕 This hypothesis was well accepted in the former USSR and further developed for the complex of glycolytic enzymes (Embden-Meyerhof-Parnas pathway) by B.I. Kurganov and A.E. Lyubarev.〔Lyubarev A. E., Kurganov B. I. Supramolecular organisation of Tricarboxylic Acids Cycle’s enzymes. Proceedings of the All-Union Symposium “Molecular mechanisms and regulation of energy metabolism”. Puschino, Russia, 1986. p. 13. (in Russian) ().〕〔Kurganov B. I, Lyubarev A. E. Hypothetical structure of the complex of glycolytic enzymes (glycolytic metabolon), formed on the membrane of erythrocytes. Molek. Biologia. 1988. V.22, No.6, p. 1605-1613. (in Russian)()〕〔Kurganov B.I., Lyubarev A.E. Enzymes and multienzyme complexes as controllable systems. In: Soviet Scientific Reviews. Section D. Physicochemical Biology Reviews. V. 8 (ed. V.P. Skulachev). Glasgow, Harwood Acad. Publ., 1988, p. 111-147 ()〕 In the mid-1970s, the group of F.M. Clarke at the University of Queensland, Australia also worked on the concept. The name “metabolon” was first proposed in 1985 by P. Srere during a lecture in Debrecen, Hungary.〔Robinson, J. B., Jr. & Srere, P. A. (1986) Interactions of sequential metabolic enzymes of the mitochondria: a role in metabolic regulation, pp. 159–171 in Dynamics of Biochemical Systems (ed. Damjanovich, S., Keleti, T. & Trón, L.), Akadémiai Kiadó, Budapest, Hungary〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Metabolon」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.